package backtracking_unfinished;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.List;

public class T46 {

    List<List<Integer>> ret = new ArrayList<>();
    List<Integer> list = new ArrayList<>();
    public List<List<Integer>> permute(int[] nums) {
        boolean[] booleans = new boolean[nums.length];

        return ret;
    }

    public void backtracking (boolean[] booleans, int[] numbs) {
        if (list.size() == numbs.length) {
            ret.add(new ArrayList<>(list));
            return;
        }
        for (int i = 0; i < numbs.length; i++) {
            if (booleans[i] == false) {

            }
        }
    }

    public static void main(String[] args) {
//        int[] ints = new int[]{1,2,3};
//        T46 t = new T46();
//        t.permute(ints);
//        System.out.println(t.ret.toString());

        String str1="hello";
        String str2="he"+ new String("llo");
        System.out.println(str1.equals(str2));
    }
    
}
